Xavier Sal, Infested Captain + Experiment Kraj + Devoted Druid + Ioreth of the Healing House

Xavier Sal, Infested Captain
Experiment Kraj
Devoted Druid
Ioreth of the Healing House

Requires
Xavier Sal, Infested Captain must be on the battlefield. Experiment Kraj must be on the battlefield. Devoted Druid must be on the battlefield. Ioreth of the Healing House must be on the battlefield. Experiment Kraj and Xavier Sal do not have summoning sickness. Devoted Druid and Ioreth of the Healing House each have at least one +1/+1 counter on them. You control at least one creature token.
Steps
  1. Activate Experiment Kraj using Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
  2. Activate Xavier Sal's first ability by tapping it and removing a -1/-1 counter from Experiment Kraj, creating a copy of any creature token you control.
  3. Activate Experiment Kraj using Ioreth of the Healing House's ability by tapping it, untapping Xavier Sal.
  4. Repeat.
Results
Infinite copies of creature tokens you control. Infinite creature tokens. Infinite ETB. Infinite mana legendary creatures you control can produce. Infinite untap of legendary creatures you control.

Xavier Sal, Infested Captain
0.11% of 4399 decks 5 decks
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Thriving Isle
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Tainted Isle
20% of 5 decks +12% synergy
Tainted Wood
20% of 5 decks +11% synergy
Shipwreck Marsh
20% of 5 decks +4% synergy
Evolving Wilds
20% of 5 decks -10% synergy
Undergrowth Stadium
20% of 5 decks -13% synergy
Rejuvenating Springs
20% of 5 decks -14% synergy
Hinterland Harbor
20% of 5 decks -17% synergy
Zagoth Triome
20% of 5 decks -22% synergy
Watery Grave
20% of 5 decks -25% synergy